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The United States of America As Represented by the Department of Energy

Innovative Surgical Technology, Inc.

Charles T Gregg

David Platts

Philip H Newman

B Michael Jackson

Gary C Salzman

Mark L Iske

W Kevin Grace

Timothy C Thompson

Richard D Hiebert

A surgical scalpel having a replaceable, spring-actuated, retractable cutting blade which may be locked in the operating or deployed position and returned to its safety position using a single digit on one hand.

Spring-actuated, retractable-bladed surgical scalpel

A three-piece knife having a replacable, retractable cutting blade, which may be locked either in the operating or deployed position, or in a retracted or safety position, by using a single digit on one hand, is described. Safety of hospital personnel and medical waste-disposal personnel is achieved in the surgical scalpel embodiment of the three-piece knife without loss of function or convenience of the scalpel.

Three-piece retractable-bladed knife

A surgical scalpel having a replacable, retractable cutting blade which may be locked in the operating or deployed position using a single digit on one hand is described. Safety of hospital personnel and medical waste disposal personnel is achieved without loss of function or convenience of the scalpel.

Retractable-bladed surgical scalpel

An apparatus and method for making multiparameter light scattering measurements from suspensions of biological particles is described. Fourteen of the sixteen Mueller matrix elements describing the particles under investigation can be substantially individually determined as a function of scattering angle and probing radiations wavelength, eight elements simultaneously for each of two apparatus configurations using an apparatus which incluees, in its simplest form, two polarization modulators each operating at a chosen frequency, one polarizer, a source of monochromatic electromagnetic radiation, a detector sensitive to the wavelength of radiation employed, eight phase-sensitive detectors, and appropriate electronics. A database of known biological particle suspensions can be assembled, and unknown samples can be quickly identified once measurements are performed on it according to the teachings of the subject invention, and a comparison is made with the database.

Biological particle identification apparatus

Growing community of inventors

Los Alamos, NM, United States of America

Charles T Gregg